NO. 2133. FISHES TAKEN BY "ALBATROSS," 1S3S— THOMPSON. 



431 



Dorsal inserted above pectoral base; space between last dor-sal ray 

 and last of muscular part of tail equal to two-thirds of least depth of 

 caudal peduncle; dorsal terminating above third from last anal ray; 

 pectoral rounded at tip; ventrals reaching anus; caudal broken but 

 apparently pointed. 



Upper lateral line extending as far as does second dorsal, over- 

 lapping the lower lateral line by two or three scales. 



Scales absent on snout, lips, and lower jaw, also on limbs of pre- 

 opercle; present on intcrorbital to betweezi eyes or sliglitly be3''ond; 

 those on cheek very small, larger on opercle and dorsal surface of 

 head; nowhere rouglily ctenoid. 



Color much faded; irregular small dark spots on dorsal surface of 

 head and body, with two rows of indefinite blotches on either side 

 of median line of flank, which may be remnants of cross bars; first 

 dorsal strikingly tipped witli black and naiTowly margined with 

 white; second dorsal with very oblique brown stripes; anal colorless; 

 caudal cross-s tripled, ventrals and pectoral clear. 



Named for Dr. C. H. Gilbert in grateful acknowledgment. 



On the roof of the mouth of the paratype is a copepod parasite, 

 filling nearly the wliole of the buccal cavity and giving rise to a 

 query as to the eating habits of the species. It was not thought 

 best to mutilate the specimens to look at the stomach contents. 



Tabic of proportional mcasuremcnis in hundredths of bod)/ length. 



Author's number 



Length to base of caudal, .mm 



Head length 



Body length 



Diameter of eye 



Snout, from eye to its tip 



Maxillary length 



Mandibular length 



Interorbital width 



Dorsal rays 



Anal rays 



Scales in lateral series 



Scales in transverse series . 



Pectoral length 



Ventral length 



Caudal peduncle dep th 



Gillrakers on first arch 



Scales occiput to dorsal 



Pectoral rays 



Combined dorsal bases 



Anal base 



Scales in lateral line 



73 



26 



0.24 



. 22 



."os 



X + 12 

 14 

 22 



0.61 



.50 



45+6 



70 

 28 

 0.27 

 .22 

 .085 

 9+12 

 16 

 23 

 0.62 

 .50 

 45+6 



I Type. 



2. NOTOTHENIA MACROCEPHALA Gunther. 



NototheniamacrocephalaGiJNTn'ER, Cat. Brit. Mus., vol. 2, 1860, p. 263. Falkland 

 Islands. — Cunningham, Voyage of H. M. S. Nassau; Trans. Linn. Soc, 

 vol. 27, 1871, p. 470. Fortune Bay, west coast of Patagonia. — Perugia, Ann. 

 Mus. Genova, (2) vol. 10, 1891, p. 18. Punta Arenas. — ?Vaillant, Mission 

 Scientifique du Cap Horn (1882-1883), vol. 6, Zoologie, Paris, 1891, p. 27, 

 pi. 3, figs. 2, 2a, 26, 2c, 2d (plates not seen and the description insufficient). 

 Orange Bay.— Smitt, Bill. Svenska. Akad., vol. 23, IV, No. 3, p. 9, pi. 3, 

 figs. 23-26, 1897. Punta Arenas. — Delfin, Catalogo de los Feces de Chile, 

 Revista Chilena, vol. 4, 1900, p. 84. — Boulenger, Southern Cross, 1902, 

 . p. 184 (part, those fi'om Cape Horn, not "iV. macrocer>hala" from Campbell 

 Island). — LoNNBERG, Hamburger Magalhaenische Sammelreise, Fische, 1907, 

 p. 10. Smyth Channel, Punta Arenas, Cape Horn. — Regan, Scottish Ant- 

 arctic Expedition, Trans. Roy. Soc. Edinburgh, vol. 49, pt. 2 (No. 2), p. 277. 

 Magellan Straits, Falkland Islands (New Zealand and Campbell Island?). 



